Improvement in boot and shoe crimpers



c. HELLER,

Boot and Shoe Grimper.

'No. 164.680. Patentedjune22fl875.

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PATENT OFFICE.

CHARLES HELLER, or CLEVELAND, OHIO.

IMPROVEMENT IN BOOT AND SHOE CRIMPEI RS.

Specification forming part of Letters Patent No. 164,680, dated June 22,1875; application filed April 2, 1875.

To all whom it may concern:

Be it known that I, OHARLEs HELLER, of Cleveland, in the county ofOuyahoga and State of Ohio, have invented an Improved Boot and ShoeOrimper, of which the following is a specification:

This invention relates to certain improve ments in crimpers; andconsists of a form on which to stretch the leather, said form beingprovided with clamps, one for the uppers and one for the back, theseveral parts constituting the device being constructed, combined, andoperated as hereinafter described and claimed.

The object of my invention is to quickly, easily, and perfectly crimpthe leather into perfect-shape without wrinklesin both the front andback, so that a boot or shoe can be made without-a seam back of theheel.

To enable others to fully understand myinvention, I proceed to describethe same in detail, with the aid of the accompanying drawing, in which-Figure l is a side elevation. Fig. 2 is a detached view of screw-clampsometimes used in the slot in the lower side of the form.

Ais the form, having the front edge arranged for forming the upper, andthe backperpendicular edge arranged for forming the back. Over the frontedge is placeda clamp, B, held at the toe by an eyebolt, B which isadjustable by means of a thumb-nut, b, playing in the slot 11 To the topend of the clamp B is pivoted a narrow frame, 0, which embraces the topof the form A, and is provided with a set-screw, c, in the back end forsecuring it. Over the back edge of the form A is placed a clamp, D, heldin place by the screw 0 at the top, and by the screw e at the bottom. Inthe bottom of the form is made a dlagonal slot, E, having piece E fittedinto it, and held by a screw, f, for filling up the space when notwanted for use. The purpose of said slot is for the insertion of theclamp, Fig. 2, as hereinafter shown. This clamp consists of a screw, g,having a screw-thread cut on about two-thirds of its length, thebalance, orpoint, terminating in a pin. The screw 9 carries a wedge-nut,h, between the jawsi i. The griping faces of said nut h are partlycorrugated, the upper part being roughened similar to the surface of afine file. The object of this modeof making the faces is to insure afirm gripe upon the edge of the leather without injuring it. Upon theside of the forinA, near the toe, is marked a scale, 70, indicating thevarious sizes for different shoes. By the side of the slot E is alsomarked a scale, also for the same purpose.

The method of using this device is as follows: The fronts or uppers arecut by a pat tern, and are placed on the form A, and secured in place bythe clamp B. The peculiarity of this and clamp D is, that they hold theleather firmly at the ends, preventing it from being, contracted in itslength while being stretched 0n the form. When the leather has been thussecured on the form, the sides are rubbed down with a burnisher of boneor glass. The leather is thus stretched at the sides without wrinklingor drawing up from the ends, so that in cutting out the leather it canbe cut to the exact pattern without allowance for shrinkage, whereby aconsiderable saving is made in cutting up leather. In stretching thefiner qualities of leather, as morocco, kid, 850., I rub onto the sidesof the form a small quantity of tallow before rubbing down the leather.This causes it to adhere to the form without the use of the clamp in theslot E. The clamp E is only used for heavier qualities of leather. Oneof the greatest advantages by this method is, that in stretching leatherthe fat or oil in the leather is not pressed out, but leaves itin asgood condition as before. The stretching of the backs is precisely thesame as for the fronts, so that no seam is made down the back of shoesor gaiters the same as boots. When the clamp, Fig. 2, is used, the pieceE is taken out of the slot E, and the clamp put in its place, the pointof the screw entering the hole in the form. This clamp is for gripingthe edges of the leather, and holdingit when the heavier kinds are to bestretched.

By the use of this device any shoemaker can easily cutout his leatherwith given patterns, and quickly and perfectly crimp it for himself.

Having described my invention, I claim 1. In a crimping apparatus, thecombina tion of the form A, clamps B and H, and rear clamp by means of athumb-screw, with slotted frame 0, adapted to embrace the upthe clamps Band H, as shown and described. per portion of the frame and hold theclamps in position, all substantially as and for the CHARLES HELLER,purpose stated. Witnesses:

2.- The combination of the slotted frame 0, GEO. W. TrBBITTs, pivoted tothe forward clamp, and. holding the ALFRED ELWELL.

